Shoe upper



FIG. 1 is a left side elevational view of a shoe upper showing a new design; FIG. 2 is a right side elevational view thereof; FIG. 3 is a top plan view thereof; FIG. 4 is a front elevational view thereof; and, FIG. 5 is a rear elevational view thereof. The broken lines which define the bounds of the claimed design form no part thereof. 

The ornamental design for a shoe upper, as shown and described. 